Answer:
1. Medial collateral ligament, lateral collateral ligament, anterior cruciate ligament and posterior cruciate ligaments.
2. Chondromalacia patellae
Explanation:
The knee is a ginglymus that connects the thigh to the leg. It is the largest joint in the human body, that plays a vital role in the horizantal and the vertical movement of the body.
There are <u>four ligaments</u> of knee joint, that joins the femur to the tibia and also provides stability by limiting movement. They are: <u>medial collateral ligament, lateral collateral ligament, anterior cruciate ligament and posterior cruciate ligaments.</u>
Chondromalacia patellae is a medical condition that includes inflammation of the cartilage on the posterior aspect of the patella, which leads to softening of the cartilage.
Answer:
Combined parenting leads to faster reproduction
Explanation:
Genetic diversity or variations in the physical appearance of organisms is caused by genetic or environmental factors. Reproduction brings about variation through gamete formation, fertilization and mutations.
During prophase 1 of meiosis, homologous chromosomes pair to form bivalents. The crossing over at the chiasmata results in new gene combination and variations.
Fertilization permits parental genes to be brought together. This causes variations in members of the same family.
Mutation is the spontaneous change in genetic make-up. These changes may be inherited by offspring bringing variations. However, combining parenting does not increase genetic diversity.
There are dominant and recessive alleles. when one allele from each parent combine, there are a couple different possibilities for traits. for example, whenever a parent gives off a dominant allele, you will automatically have that trait because it would have combined with another dominant allele, or it would have overpowered the other recessive alelle. you cam find these different combos by using a punnet square. but also, some traits, such as eyecolor, are determined by incomplete dominance, when the colors of your parents in their greenness combine in to a new color. or, you can have codominance when you have one of each eyecolor of your parents.
